Anrew Collins has picked up on an interesting (and funny) item in Google’s The Da Vinci Code Quest, which is attracting millions of hits. Question Question 3, given out on the third day of the game, is:

The engraved tablet that is supposed to reveal the hiding place of the Holy Grail is called the:

1. Meonia Stone
2. Tabula rosa
3. Keystone
4. Rosetta Stone.

The answer being ‘keystone’.

After which it says:

‘Not a chess player? Try searching on Google for the answers you need.’

This means that thousands of people will be googling the term ‘Meonia stone’ and trying to find out what the hell it’s all about.